JP5872432B2 - Horizontal pipe joint and drainage horizontal pipe using the same - Google Patents

Description

  The present invention relates to a joint for a horizontal pipe and a drainage horizontal pipe using the same, and more particularly to a joint for a horizontal pipe and a drainage horizontal pipe using the same that are applied to a bent portion of a drainage horizontal pipe in a building.

Conventionally, drainage horizontal pipes installed in floor pits of buildings such as condominiums have generally been provided with a cleaning port for maintenance at bent parts, etc. In water supply and drainage equipment standards, etc., it is recommended that a cleaning port be provided at a location where the drain pipe changes direction at an angle exceeding 45 °. For example, a construction example for providing a cleaning port in a bent portion of a drainage horizontal pipe is described in Non-Patent Document 1, but in the technique of Non-Patent Document 1, a three-way joint is connected to a bent portion of a drainage horizontal pipe. By attaching a detachable lid to one receiving port of the three-way joint, the receiving port is used as a cleaning port.
Kubota Sea Eye Co., Ltd. Catalog for Building Equipment Piping No.D00-06 07.7.5.10.CRF.EE P28-31, 59,60

  Such drainage horizontal pipes need to be periodically cleaned. When cleaning, for example, a high-pressure cleaning nozzle is inserted from the downstream side of the drainage horizontal pipe. A method is adopted in which the high-pressure washing nozzle is sent upstream while scraping (removing) the deposits in the pipe by the high-pressure water flow injected from the pipe.

  However, in the technique of Non-Patent Document 1, as illustrated in FIG. 14, a concave space S is formed on the back side of the lid attached to the cleaning port of the joint. When performing, a high-pressure washing nozzle may enter the space S of the cleaning port. If the high-pressure cleaning nozzle enters the space S of the cleaning port, the high-pressure cleaning nozzle cannot be sent upstream from there. In that case, the cleaning port formed in the joint is opened, and so on. The upstream side had to be cleaned by inserting another high-pressure cleaning nozzle into the pipe from the cleaning port. Therefore, labor and time are required for the work, and there is a difficulty in maintaining and managing the drainage horizontal pipe.

  In addition, a very high skill is required for the operation of inserting the high-pressure washing nozzle so as not to enter the space S of the cleaning port, so it must depend on the skill of each worker. It is the current situation, and there has been a demand for easier construction.

  Therefore, a main object of the present invention is to provide a novel horizontal pipe joint and a drainage horizontal pipe using the same.

  Another object of the present invention is to provide a joint for a horizontal pipe and a horizontal drain pipe using the same, which can easily maintain the drainage horizontal pipe.

  The present invention employs the following configuration in order to solve the above problems. Note that reference numerals in parentheses, supplementary explanations, and the like indicate correspondence relationships with embodiments described later to help understanding of the present invention, and do not limit the present invention in any way.

  A first aspect of the present invention is a joint for a horizontal pipe, which is used by being connected to a drainage horizontal pipe of a building and includes a joint body having an inlet and an outlet having a predetermined angle, from a flow path from the inlet to the outlet. It includes a cleaning port that branches off and is formed at a position facing the outlet in the joint body, and is closed by a detachable lid, and a cleaning nozzle is provided on the back side of the lid from the outlet side in the joint body. It is a joint for horizontal pipes provided with the guide part for guiding to the side.

  In the first invention, the joint for a horizontal pipe (10) is used by being connected to a drainage horizontal pipe (100) of a building, and includes a joint body (12) and a lid (28). The joint body is formed with an inlet (18) and an outlet (22) having a predetermined angle. An inflow pipe (104) through which waste water flows into the joint body from the upstream side is connected to the inflow port, and an outflow pipe (102) through which waste water in the joint body flows out to the downstream side is connected to the outflow port. Is done. Further, the joint body is branched from the flow path from the inlet to the outlet, and a cleaning port (26) is formed at a position facing the outlet. A lid is detachably attached to the cleaning port, and is closed when not in use. Furthermore, a guide part (44) is provided on the back side of the lid. The guide portion is provided so as to protrude from the back surface of the lid to the inside of the joint body, and guides the cleaning nozzle (106) from the outlet side to the inlet side in the joint body when the drainage horizontal pipe is cleaned. For example, the cleaning nozzle inserted into the horizontal pipe joint from the downstream outflow pipe collides with the front end surface of the guide portion, and moves toward the upstream side, that is, the inflow pipe along the front end surface.

  According to the first aspect of the present invention, the cleaning nozzle can be guided from the outlet side to the inlet side by the guide unit when the drainage horizontal pipe is cleaned, so that anyone can easily do without depending on the skill of the worker. The drainage horizontal pipe can be cleaned. Therefore, the maintainability of the drainage horizontal pipe can be improved.

  A second invention is dependent on the first invention, and the guide portion is provided at the front end of the support portion, the support portion provided to protrude from the back surface of the lid body into the joint body, and the open end of the support portion. Including a plate portion that closes.

  In 2nd invention, a guide part (44) is comprised by the support part (46) and the board part (48). For example, the support portion is a hollow cylindrical short tube made of a synthetic resin, and is provided so as to protrude from the back surface of the lid (28) into the joint body. Joined by. Further, for example, the plate portion is a circular flat plate made of synthetic resin, and is joined to the tip of the support portion by vinyl chloride welding or the like to close the opening end of the support portion.

  According to the second invention, for example, if a guide part is configured by combining general-purpose products manufactured for different applications and the guide part is provided on the lid, the manufacturing cost of the lid is reduced. As a result, the joint for a horizontal pipe can be easily and inexpensively manufactured.

  3rd invention depends on 2nd invention, and a board part is provided so that it may become parallel with respect to a cover body.

  In the third invention, the plate portion (48) is provided at the tip of the support portion (46) of the guide portion (44) so as to be parallel to the lid (28). By doing so, when attaching the lid to the cleaning port (26), directionality is not required in the circumferential direction of the lid, and regardless of the circumferential position of the lid attached to the cleaning port, The guide part can exhibit the same effect. Therefore, the mounting work of the lid body on the cleaning port can be performed more easily.

  4th invention is dependent on 2nd invention, and a board part is provided so that it may incline from an inflow port side to an inflow port side.

  In the fourth invention, the plate portion (48) is provided at the tip of the support portion (46) of the guide portion (44) so as to incline from the outflow (22) port side toward the inflow port (18) side. . By doing so, the cleaning nozzle (106) inserted into the joint (10) for the horizontal pipe can be more smoothly guided from the outlet side to the inlet side by the guide portion.

  5th invention depends on 2nd or 3rd invention, and a guide part is provided so that it may be settled in the predetermined range from the back surface of a cover body to the base end of the branch part in which the cleaning port was formed.

  In the fifth invention, the cleaning port (26) is formed at the tip of the branch portion (24) branched from the flow path from the inflow port (18) to the outflow port (22) in the joint body (12). (44) is provided so as to be within a predetermined range from the back surface of the lid (28) to the base end (24a) of the branching portion. That is, the guide portion is arranged so that the tip thereof is flush with the base end of the branch portion or does not protrude toward the inside of the joint body from the base end of the branch portion.

  According to the fifth invention, the guide portion can be prevented from interfering with the drainage flowing from the inlet to the outlet in the horizontal pipe joint, so that the flow rate of the horizontal pipe joint can be secured, and Foreign matter such as dust is not caught on the guide portion and accumulated.

  The sixth invention is dependent on the fifth invention, and is set such that the distance between the distal end of the guide portion and the proximal end of the branch portion is smaller than the radius of the cleaning nozzle.

  In the sixth invention, the distance (d1) between the base end (24a) of the branch portion (24) of the joint body (12) and the tip of the guide portion (44) is larger than the radius of the cleaning nozzle (106). It is set to be smaller. By doing so, the cleaning nozzle can easily move to the inlet (18) side over the height difference generated between the distal end of the guide portion and the proximal end of the branching portion, so that the cleaning nozzle (106) is more It becomes possible to guide to the inflow side smoothly.

  A seventh invention is dependent on any one of the first to sixth inventions, and the joint body is formed of a light transmissive material.

  In the seventh invention, the joint body (12) is formed of a light transmissive material such as polycarbonate, acrylic, or transparent vinyl chloride.

  According to the seventh aspect of the present invention, when there is a problem in the inside of the joint for horizontal pipes, it is possible to visually check the inside of the joint body without removing the lid and opening the cleaning port. Become.

  In addition, when the inside of the drainage horizontal pipe is irradiated with light, only the side pipe joint portion of the drainage horizontal pipe can be illuminated from the inside, so that the position of the side pipe joint can be easily grasped even in the underfloor pit.

  The eighth invention is dependent on any one of the first to seventh inventions, and the light emitting means is provided on at least one of the outer surface of the joint body and the surface of the lid.

  In the eighth invention, the outer surface of the joint body (12) and the top plate (34) of the lid (28) are provided with light emitting means such as a fluorescent member, a phosphorescent member, or a reflecting member.

  According to the eighth aspect of the invention, the horizontal pipe joint that has been irradiated with light is illuminated by the light emitting means, so that the position of the horizontal pipe joint can be easily grasped. Therefore, it is possible to further improve the maintainability.

  A ninth invention is a drainage horizontal pipe using the joint for a horizontal pipe of the first to eighth inventions at a bent portion.

  In the ninth aspect of the invention, the drainage horizontal pipe (100) is disposed in a floor pit or the like of a building, and a horizontal pipe joint (10) is connected to the bent portion. For example, a horizontal pipe joint has a bent portion where drainage from the drainage vertical pipe (104) flows into the drainage horizontal main pipe (102), a bent portion where the arrangement height of the drainage horizontal main pipe changes, or the same installation height. It is connected to a bent part where the direction of the drainage main pipe changes.

  According to the ninth aspect, the maintainability of the drainage horizontal pipe is improved.

  According to the present invention, since the guide portion is provided on the back side of the lid attached to the cleaning port, the cleaning nozzle can be guided from the outlet to the inlet side without any trouble in the joint body. The pipe can be easily cleaned.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

It is an illustration figure which shows a mode that the joint for horizontal pipes of one Example of this invention was connected to the drainage horizontal pipe. It is a front view which shows the coupling for horizontal pipes of FIG. It is a side view which shows the coupling for horizontal pipes of FIG. It is a top view which shows the coupling for horizontal pipes of FIG. It is sectional drawing which shows the coupling for horizontal pipes of FIG. It is the illustration figure which expanded the part of the cover body in FIG. It is an illustration figure which shows a mode that the inside of a waste_water | drain drainage is wash | cleaned with a washing nozzle. It is an illustration figure which shows a mode that a washing | cleaning nozzle is inserted into the joint for horizontal pipes of FIG. 1 from the downstream, and a washing | cleaning nozzle is pushed to the upstream. It is sectional drawing which shows the coupling for horizontal pipes of another Example of this invention. It is a perspective view which shows the coupling for horizontal pipes of another Example of this invention. It is sectional drawing which shows the coupling for horizontal pipes of FIG. It is the illustration figure which expanded the part of the cover body in FIG. It is an illustration figure which shows a mode that a washing | cleaning nozzle is inserted into the joint for horizontal pipes of FIG. It is an illustration figure which shows a mode that the washing nozzle was inserted in the conventional joint for horizontal pipes from the downstream.

  Referring to FIG. 1, a horizontal pipe joint 10 according to an embodiment of the present invention is used by connecting to a horizontal drain pipe 100 disposed in a floor pit of a building such as an apartment or a detached house. is there. For example, in this embodiment, the horizontal pipe joint 10 is used at a location (curved portion) where the drainage from the drainage standpipe 104 flows into the drainage horizontal main pipe 102, but is not limited to this. You may make it use for the bending part from which the arrangement | positioning height of the main pipe 102 changes, the bending part from which the direction of the drainage horizontal main pipe 102 changes with the same arrangement | positioning height, etc.

  As shown in FIG. 2-4, the horizontal pipe joint 10 includes a joint body 12 made of a synthetic resin such as vinyl chloride. In this embodiment, the joint main body 12 is a 90 ° large-bend Y joint, and has a straight tubular body portion 14 and an inflow portion 16 protruding outward from the vicinity of the center of the body portion 14.

  The inflow portion 16 is formed in a curved shape from the body portion 14 and has a short cylindrical receiving structure. The inflow portion 16 is a connection portion to which an end portion of an inflow pipe (that is, a drainage standpipe) 104 located on the upstream side is connected, and an opening through which the inflow flows into the joint body 12 from the upstream side. 18 is used. The diameter of the inflow port 18 is, for example, 200 mm, and the horizontal pipe joint 10 and the inflow pipe 104 are connected by inserting the pipe end of the inflow pipe 104 into the inflow portion 16 and adhesively joining it.

  Further, the joint body 12 is formed with an outflow portion 20 so as to form a predetermined angle with the inflow portion 16. In this embodiment, the outflow portion 20 is one end portion in the axial direction of the body portion 14, and is orthogonal or substantially orthogonal to the axial line of the inflow port 18, and has a short cylindrical receiving structure. The outflow portion 20 is a connection portion to which an end of an outflow pipe (that is, a drainage horizontal main pipe) 102 located on the downstream side is connected, and an opening through which the outflow discharges the wastewater in the joint body 12 to the downstream side. 22 is used. The diameter of the outflow port 22 is, for example, 200 mm, and the horizontal pipe joint 10 and the outflow pipe 102 are connected by inserting the pipe end of the outflow pipe 102 into the outflow portion 20 and adhesively bonding it.

  Further, the joint body 12 is branched from the inlet 18 and the outlet 22 to form a cleaning port 26. In other words, the joint body 12 is formed with a branching portion 24 branched from the flow path from the inlet 18 to the outlet 22, and the tip opening of the branching portion 24 is connected to the joint 10 for the horizontal pipe and the drainage horizontal pipe 100. Used as a cleaning port 26 for maintenance. In this embodiment, the branching portion 24 is provided at the other end portion in the axial direction of the body portion 14, that is, at a position facing the outflow port 22, and has a short cylindrical receiving structure. The lid 28 is detachably attached and is closed except during use. The diameter of the cleaning port 26 is, for example, 200 mm.

  Specifically, as shown in FIGS. 5 and 6, a straight tubular short tube 30 is inserted into the cleaning port 26 (branch portion 24), and the lid 28 is connected to the cleaning port through the short tube 30. 26. The short tube 30 is adhesively bonded to the cleaning port 26 with a watertight adhesive or the like, and a screw portion 32 is formed on the inner surface thereof.

  The lid body 28 includes a top plate 34 that covers the cleaning port 26. The top plate 34 is formed in a substantially disc shape by a synthetic resin such as hard vinyl chloride, and its outer diameter is the same as or larger than the diameter of the cleaning port 26 so that the entire cleaning port 26 can be covered. A large value is set, for example, 200 mm.

  A fitting portion 36 is formed along the outer peripheral edge of the top plate 34 on the back surface of the top plate 34, that is, the inner surface of the joint body 12. The fitting portion 36 is formed in a short tubular shape, and a screw portion 38 is formed on the outer surface thereof. Then, the lid 28 is fixed to the cleaning port 26 by screwing the screw portion 38 of the fitting portion 36 with the screw portion 32 of the short tube 30 adhesively bonded to the cleaning port 26. Further, an annular seal member 40 is provided at a predetermined position outside the fitting portion 36. The seal member 40 is made of rubber such as styrene butadiene rubber (SBR), and abuts against the opening end surface of the short tube 30 when the cover 28 is fixed to the cleaning port 26, so that the space between the short tube 30 and the cover 28 is watertight. Blockage (ie water stoppage).

  Further, a gripping portion 42 is formed on the surface side of the top plate 34. The grip portion 42 is formed in a knob shape, and the operator can easily attach and detach the lid body 28 with respect to the cleaning port 26 by gripping the grip portion 42. In this embodiment, the grip portion 42 is configured by using a part of the top plate 34 of the joint body 12 and forming a concave and convex knob shape on the top plate 34, but it is necessary to be limited to this. Instead, the grip portion 42 of another member may be bonded and bonded to the upper surface of the top plate 34.

  Furthermore, a guide portion 44 for guiding the cleaning nozzle 106 when cleaning a drain pipe such as the drain horizontal pipe 100 is provided on the back side of the top plate 34.

  Prior to the description of the guide portion 44, the outline of the cleaning method for cleaning the inside of the drainage pipe will be briefly described. As shown in FIG. The cleaning nozzle 106 of the high pressure washer is inserted from the most downstream side of the range. As an example, the cleaning nozzle 106 is a rear injection nozzle having a substantially circular cross section that injects a high-pressure water flow obliquely rearward, and deposits and the like in the drainage pipe are removed by the high-pressure water flow injected from the cleaning nozzle 106. The cleaning nozzle 106 is self-propelled by the reaction force of the jet, that is, propels toward the upstream side of the drain pipe. The diameter of the cleaning nozzle 106 is, for example, 8 mm-12 mm. Then, the cleaning nozzle 106 inserted from the most downstream side of the cleaning range is propelled by a worker's manual operation (push-in operation) and a reaction force caused by jetting to reach the uppermost stream side of the cleaning range, thereby allowing the inside of the drain pipe Perform cleaning.

  Returning to FIG. 6, in this embodiment, the guide portion 44 is for guiding the cleaning nozzle 106 from the outlet 22 side to the inlet 18 side in the joint body 12, and includes a support portion 46, a plate portion 48, Consists of.

  The support portion 46 is a hollow cylindrical short tube formed of a synthetic resin such as vinyl chloride. The support portion 46 is formed on the back surface of the lid 28 (the top plate 34) and inside the fitting portion 36 by PVC welding or the like. Be joined. For example, the support portion 46 may be a general-purpose vinyl chloride tube cut to a predetermined size. The support portion 46 is provided so as to protrude from the back surface of the lid body 28 into the joint main body 12, and has an inner diameter of, for example, 150 mm and a length of, for example, 120 mm. A sponge rubber ring 50 made of sponge rubber (foam rubber) is provided in the gap between the support part 46 and the fitting part 36, and a space surrounded by the support part 46, the fitting part 36, and the sponge rubber ring 50 is provided. Is filled with a bonding material 52 such as a water-stopping caulking material or a tough bond (manufactured by Kubota Eye).

  The plate portion 48 is a circular flat plate formed of a synthetic resin such as vinyl chloride, and is joined to the tip of the support portion 46 by vinyl chloride welding or the like. The plate part 48 closes the opening end of the support part 46 and is arranged so as to be parallel to the lid body 28. For example, the plate portion 48 can be a general-purpose vinyl chloride plate cut to a predetermined size. The diameter of the plate part 48 is, for example, 190 mm, and the thickness thereof is, for example, 5 mm.

  The guide portion 44 is adapted to be within a predetermined range up to the base end 24a of the branch portion 24 so as to avoid interference with the drainage flowing from the inlet 18 to the outlet 22 in the joint body 12. The For example, in this embodiment, the branch portion 24 is a portion branched from the flow path from the inlet 18 to the outlet 22 as described above, and the portion where the branch portion 24 intersects the inflow portion 16 is the branch portion. 24 corresponds to the base end 24a. Therefore, the length dimension of the guide portion 44 (that is, the total dimension of the axial length of the support portion 46 and the thickness of the plate portion 48) is such that the distal end of the guide portion 44 is flush with the proximal end 24a of the branch portion 24. Alternatively, it is set to a value within a predetermined range that does not protrude from the base end 24 a of the branch portion 24 toward the inside of the joint body 12.

  In addition to this, the distance d1 between the base end 24a of the branching portion 24 and the distal end surface of the guide portion 44, that is, the distal end surface of the plate portion 48, indicated by a one-dot chain line in FIG. 6, is smaller than the radius of the cleaning nozzle 106. Is set to be For example, in this embodiment, the length dimension of the guide portion 44 is set so that the distance d1 between the distal end thereof and the base end 24a of the branching portion 24 is about 2 mm. Although details will be described later, by doing so, the cleaning nozzle 106 overcomes the height difference generated between the plate portion 48 at the distal end of the guide portion 44 and the base end 24a of the branching portion 24 and moves toward the inflow portion 16 side. It becomes easy to move.

  Further, the inner peripheral surface of the base end 24 a of the branch portion 24 and the tip of the guide portion 44 are prevented so that the cleaning nozzle 106 does not enter the gap between the branch portion 24 and the guide portion 44 when cleaning the drainage pipe. The size (distance) of the gap between the outer peripheral edge of the plate portion 48 and the outer peripheral edge of the plate portion 48 is set to be smaller than the diameter of the cleaning nozzle 106. For example, in this embodiment, it is about 2 mm. Is set.

  Referring to FIG. 8, when the inside of the drainage horizontal pipe 100 in which such a horizontal pipe joint 10 is connected to the bent portion is cleaned by the above-described cleaning method, as shown in FIG. The cleaning nozzle 106 inserted into the horizontal pipe joint 10 from the outflow pipe 102 on the downstream side by the reaction (pushing work) and the reaction force caused by the jet is caused to advance straight in the traveling method as it is and collides with the plate portion 48 of the guide portion 44. Then, as shown in FIG. 8B, the cleaning nozzle 106 moves (slides) along the plate portion 48 while being in contact with the plate portion 48 by the propulsive force of the water flow. And since it cannot go to the side of the board part 48 other than the direction of the inflow part 16, the washing | cleaning nozzle 106 which is moving along the board part 48 is the inflow part 16 which is the only path | route which can advance. As shown in FIG. 8C, the inside of the inflow portion 16 is propelled toward the upstream side, that is, toward the inflow pipe 104.

  As described above, according to this embodiment, since the guide portion 44 is provided on the back surface side of the lid 28 attached to the cleaning port 26, it is inserted into the joint 10 for the horizontal pipe when the drainage horizontal pipe 100 or the like is cleaned. The cleaning nozzle 106 can be guided from the outlet 22 side to the inlet 18 side in the joint body 12 by the guide portion 44. Therefore, the cleaning nozzle 106 enters the space S formed in the branch portion of the cleaning port as in the pipe joint shown in FIG. Since the cleaning nozzle 106 can be smoothly guided from the outlet 22 side to the inlet 18 side, anyone can easily clean the drainage horizontal pipe 100 without depending on the skill of the operator. it can. Therefore, the maintainability of the drainage horizontal pipe 10 can be improved.

  In this embodiment, the guide portion 44 is constituted by a support portion 46 using a vinyl chloride tube or the like and a plate portion 48 using a vinyl chloride plate or the like. That is, it is possible to provide the guide portion 44 on the lid body 28 by combining conventional products (general-purpose products) manufactured for different uses and joining them to the lid body 28 by vinyl chloride welding or the like. In this way, if the guide body 44 is manufactured using only the conventional product instead of manufacturing the lid body 28 integrally provided with the guide section 44 as a dedicated product, a new mold or the like can be obtained. It is possible to reduce the manufacturing cost of the lid body 28, such as eliminating the need for manufacturing, and it becomes possible to manufacture the joint 10 for a horizontal pipe easily and inexpensively.

  Moreover, since the guide portion 44 can be retrofitted to the lid body 28, the cover body of the joint for the horizontal pipe already used for the bent portion of the drainage horizontal pipe or the like is welded by vinyl chloride welding or the like. Providing the guide portion 44 also makes it possible to manufacture a joint for a horizontal pipe that exhibits the same effects as in the present embodiment. That is, the horizontal pipe joint 10 of this embodiment can also be manufactured by applying the guide portion 44 to the existing horizontal pipe joint.

  Further, in this embodiment, since the plate portion 48 of the guide portion 44 is provided in parallel to the lid body 28, the lid body 28 is attached when the lid body 28 is attached to the cleaning port 26 of the joint body 12. No directionality is required in the circumferential direction. That is, for example, if the plate portion 48 of the guide portion 44 is not provided in parallel to the lid body 28, when the lid body 28 is attached to the cleaning port 26, there is an accurate directivity in the circumferential direction of the lid body 28. Therefore, if the screwing amount is slightly different when screwing the screw part 32 of the short tube 30 and the screw part 38 of the lid body 26 (the fitting part 36), the guide part 44 will Although the function may not be fulfilled, the plate portion 48 of the guide portion 44 is provided in parallel to the lid body 28 as in this embodiment, so that the cleaning port 26 of the joint main body 12 is provided. Regardless of the circumferential position of the attached lid 28, the guide portion 44 can exhibit the same effect. Therefore, according to this embodiment, the mounting operation of the lid body 28 to the cleaning port 26 can be performed more easily.

  Furthermore, in this embodiment, the guide portion 44 is provided so as to be within a predetermined range up to the base end 24 of the branch portion 24 where the cleaning port 26 is formed, and the front end of the guide portion 44 is the base of the branch portion 24. The end 24 a is flush with the end 24 a, or the base end 24 a of the branch portion 24 is not protruded into the joint body 12. For this reason, since it can avoid that the guide part 44 interferes with the waste_water | drain which flows in the inside of the joint 10 for horizontal pipes from the inflow port 22 to the outflow port 18, while being able to ensure the flow volume of the joint 10 for horizontal pipes, Foreign matter such as dust is not caught by the guide portion 44 and accumulated.

  In addition, in this embodiment, the length dimension of the guide portion 44 is set so that the distance d1 between the distal end of the guide portion 44 and the base end 24a of the branching portion 24 is smaller than the radius of the cleaning nozzle 106. ing.

  Here, when the guide portion 44 is arranged so that the tip thereof is recessed from the base end 24 a of the branch portion 24, there is a difference in height between the plate portion 48 at the tip of the guide portion 44 and the base end 24 a of the branch portion 24. However, as in this embodiment, the distance d1 between the distal end of the guide portion 44 and the base end 24a of the branching portion 24 is made smaller than the radius of the cleaning nozzle 106, thereby cleaning the drain pipe. The cleaning nozzle 106 that sometimes moves on the surface of the plate portion 48 at the distal end of the guide portion 44 overcomes the height difference formed between the plate portion 48 and the base end 24a of the branching portion 24, that is, upstream, that is, the inflow portion. It becomes easy to move to the 18th side. Therefore, according to this embodiment, the cleaning nozzle 106 can be more smoothly guided from the outlet 22 side to the inlet 18 side.

  In the above-described embodiment, the guide portion 44 is constituted by the support portion 46 and the plate portion 48, and the guide portion 44 is joined to the lid body 28 by vinyl chloride welding or the like, but it is necessary to be limited to this. Instead, the lid 28 and the guide portion 44 may be manufactured integrally.

  Further, the guide portion 44 is not necessarily constituted by the support portion 46 and the plate portion 48, and the guide portion 44 protrudes from the back surface of the lid body 28 into the joint body 12, and the branch in which the cleaning port 26 is formed. The shape / material is not particularly limited as long as the cleaning nozzle 106 can be prevented from entering the space generated in the portion 24.

  In the above-described embodiment, the plate portion 48 of the guide portion 44 is provided in parallel to the lid body 28, but it is not necessary to be limited to this. However, in this case, the lid body 28 is not fixed to the cleaning port 26 by screwing the screw portion 32 of the short tube 30 and the screw portion 38 of the lid body 28 (the fitting portion 36 thereof). It is preferable to employ a joining method such as bayonet joining in which the circumferential position of the lid 26 is also fixed when the lid 28 is fixed to the cleaning port 26. By doing so, the guide portion 44 can exhibit the same effect regardless of the position of the lid body 26 in the circumferential direction.

  Further, the plate portion 48 of the guide portion 44 may be formed so as to be inclined from the outlet 22 side to the inlet 18 side.

  For example, as shown in FIG. 9, the opening end surface at the tip of the support portion 46 of the guide portion 44 is formed so as to be inclined from the outlet 22 side toward the inlet 18, and there is the outlet 22 side. A plate portion 48 formed in a curved plate shape inclined toward the inlet 18 side is provided. By doing so, the cleaning nozzle 106 inserted into the horizontal pipe joint 10 can be more smoothly guided from the outlet 22 side to the inlet 18 side by the guide portion 44. In the embodiment of FIG. 8, the guide portion 44 protrudes to the inside of the joint body 12 from the base end 24 a of the branch portion 24, but interferes with the flow path from the inlet 18 to the outlet 22. Therefore, the flow rate of the horizontal pipe joint 10 can be secured, and foreign matter such as dust in the drainage is not caught by the guide portion 44 and accumulated. The plate portion 48 is not necessarily formed in a curved plate shape, and the plate portion 48 formed in a flat plate shape may be provided so as to be inclined from the outlet 22 side toward the inlet 18 side.

  Furthermore, in the above-described embodiment, the 90 ° -bent Y-joint is applied as the joint body 12 of the joint 10 for a horizontal pipe. However, the present invention is not limited to this, and the inflow port 18 and the outflow port 22 form a predetermined angle. And the shape of the joint for a horizontal pipe 10 is not particularly limited.

  As an example, a joint body 12 of a joint 10 for a horizontal pipe according to another embodiment of the present invention shown in FIG. 10 is a 45 ° Y joint made of a synthetic resin such as vinyl chloride, and has a straight tubular body 14 and a body. And an inflow portion 16 projecting outward from the vicinity of the center of the portion 14. Hereinafter, detailed description of the same parts as those of the horizontal pipe joint 10 in the embodiment of FIG. 1 will be omitted.

  As shown in FIGS. 10 and 11, the inflow portion 16 is formed so as to intersect at an angle of 45 ° with respect to the axis of the body portion 14, and its tip opening allows the drainage to flow into the joint body 12 from the upstream side. Used as the inlet 18. Further, the outflow portion 20 is one end portion in the axial direction of the body portion 14 and forms a predetermined obtuse angle with the inflow port 18, that is, intersects the axis of the inflow port 18 at an angle of 135 °. The opening at the tip is used as an outlet 22 for draining the waste water in the joint body 12 to the downstream side. Further, a branch portion 24 is formed in the joint body 12 at a position where it branches off from the flow path from the inlet 18 to the outlet 22 and faces the outlet 22. That is, the branch portion 24 is the other end portion in the axial direction of the body portion 14, and the tip opening of the branch portion 24 is used as the cleaning port 26. The same lid 28 as the embodiment of FIG. 1 is attached to the cleaning port 26.

  Further, as shown in FIG. 12, a guide portion 44 for guiding the cleaning nozzle 106 from the outlet 22 side to the inlet 18 side in the joint body 12 at the time of cleaning the drainage pipe is provided on the back surface side of the lid 28. Is provided. And also in this horizontal pipe joint 10, the guide part 44 is arrange | positioned so that it may be settled in the predetermined range to the base end 24a of the branch part 24. FIG. Further, the distance d2 between the base end 24a of the branching portion 24 and the tip end of the guide portion 44, that is, the tip end surface of the plate portion 48, indicated by a one-dot chain line in FIG. 12, is set to be smaller than the radius of the cleaning nozzle 106. For example, it is about 2 mm.

  In the embodiment of FIG. 10 as well, the guide portion 44 is provided on the back surface side of the lid 28 attached to the cleaning port 26 as in the embodiment of FIG. It is possible to smoothly guide the cleaning nozzle 106 to the side without any trouble. Therefore, the maintainability of the drainage horizontal pipe 10 can be improved.

  In addition, even in the case of the horizontal pipe joints 10 having different shapes of the joint main bodies 12 such as the horizontal pipe joint 10 of the embodiment of FIG. 1 and the horizontal pipe joint 10 of the embodiment of FIG. A common lid 28 can be used as long as it can be disposed so as to be within a predetermined range up to the base end 24a of 24. If a lid body is manufactured corresponding to the joint for a horizontal pipe having the largest dimension of the branch portion between multiple types of horizontal pipe joints having the same diameter cleaning port, the lid body is attached to another horizontal pipe joint. It can also be used in common for pipe joints. In this way, it is convenient for mass production of the lid, and the manufacturing cost of the lid can be suppressed.

  Furthermore, in all of the above-described embodiments, the backward injection type cleaning nozzle 106 that injects a high-pressure water flow obliquely backward is guided from the outlet 22 side to the inlet 18 side by the guide portion 44. The rear injection type is not necessarily required. For example, in the case of a cleaning nozzle that injects a high-pressure water stream forward, when a worker manually inserts the cleaning nozzle, it simply pushes the cleaning nozzle in the direction of travel and moves it straight. The cleaning nozzle can be propelled upstream in 10 without any trouble.

  Furthermore, although illustration is omitted, light emitting means may be provided on the outer surface of the joint body 12 of the joint for horizontal pipe 10 and the surface of the top plate 34 of the lid 28.

  For example, the light emitting means is a fluorescent member, a phosphorescent member, or a reflecting member. As an example, a tape or a reflecting plate using a reflecting material is attached to the outer surface of the joint body 12 or the top plate 34 of the lid 28. You may make it attach, You may make it apply | coat the coating material which consists of a fluorescent material and a phosphorescent material to the outer surface of the coupling main body 12, and the surface of the top plate 34 of the cover body 28, or utilized the fluorescent material and the phosphorescent material. You may make it affix a tape on the outer surface of the coupling main body 12, and the surface of the top plate 34 of the cover body 28. FIG.

  In addition, since the inside of the pit under the floor of the building is dim, it is necessary for the operator to perform maintenance management and inspection while illuminating with a flashlight. However, by installing a light emitting means on the horizontal pipe joint 10 to be inspected, Since the joint 10 for horizontal pipes irradiated with light comes to light, it becomes easy to grasp | ascertain the position of the joint 10 for horizontal pipes. Therefore, it is possible to further improve the maintainability.

  Furthermore, as a material for the joint body 12, a light transmissive material (transparent resin) such as polycarbonate, acrylic, or transparent vinyl chloride may be employed. By doing so, when there is a problem in the inside of the joint 10 for the horizontal pipe, it is possible to visually check the inside of the joint body 12 without removing the lid 28 and opening the cleaning port 26. Therefore, it is easy to take effective measures for maintenance. Further, if a light source is installed in the drainage horizontal pipe 100 or the light of the flashlight is irradiated to the inside of the drainage horizontal pipe 100, only the portion of the horizontal pipe joint 10 in the drainage horizontal pipe 100 is provided inside. Therefore, the position of the horizontal pipe joint 10 can be easily grasped even in the underfloor pit. Therefore, it is possible to further improve the maintainability.

  In addition, the specific numerical values such as the above-described diameter and height are merely examples, and can be appropriately changed according to the necessity of product specifications and the like.

DESCRIPTION OF SYMBOLS 10 ... Joint for horizontal pipes 12 ... Joint body 18 ... Inlet 22 ... Outlet 24 ... Branch part 26 ... Cleaning port 28 ... Lid 44 ... Guide part 46 ... Support part 48 ... Plate part 100 ... Drainage pipe 106 ... Washing nozzle

Claims (9)

In a joint for a horizontal pipe provided with a joint body having an inflow port and an outflow port having a predetermined angle, which is used by being connected to a drainage horizontal pipe of a building,
A cleaning port that branches off from the flow path from the inflow port to the outflow port and that is formed at a position facing the outflow port in the joint body, and is closed by a detachable lid;
A joint for a horizontal pipe, characterized in that a guide portion for guiding a cleaning nozzle from the outlet side to the inlet side in the joint body is provided on the back side of the lid. The guide portion is
2. The horizontal pipe according to claim 1, comprising: a support portion that protrudes from the back surface of the lid into the joint body; and a plate portion that is provided at a tip of the support portion and closes an opening end of the support portion. Fittings.   The horizontal plate joint according to claim 2, wherein the plate portion is provided so as to be parallel to the lid.   The horizontal pipe joint according to claim 2, wherein the plate portion is provided so as to be inclined from the outlet side to the inlet side.   4. The joint for a horizontal pipe according to claim 2, wherein the guide portion is provided so as to be within a predetermined range from a back surface of the lid body to a base end of a branch portion where the cleaning port is formed.   The joint for a horizontal pipe according to claim 5, wherein a distance between a distal end of the guide portion and a proximal end of the branch portion is set to be smaller than a radius of the cleaning nozzle.   The joint for horizontal pipes in any one of Claim 1 thru | or 6 with which the said joint main body is formed with a light-transmitting material.   The joint for horizontal pipes in any one of Claim 1 thru | or 7 with which a light emission means is provided in at least any one of the outer surface of the said coupling main body, and the surface of the said cover body.   The drainage horizontal pipe which used the joint for horizontal pipes in any one of Claim 1 thru | or 8 for the bending part.

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